"Well-" Ellen hesitates. "I guess 'overdoses' is probably a better word. The Vault physician before my father wasn't always careful about locking up the Med-X supply, or some of the other painkillers, and since there weren't a lot of psychotropic chems in Vault 101's inventory, people who had things like Vault Depressive Syndrome sometimes... tried to self medicate. And didn't always ge`t it right."